one year and half 有这个词组吗?

one year and half 有这个词组吗? A.one and a half year`sB.a year and a half`sC.one and a half one month and a half和one and a half month有区别吗? 是one year and a half还是a year and a half?为什么? half的用法是 one and a half years 还是one and a half year?half具体的用 one () and a half one and a half () years or year? one and a half 后加year 还是years the baby is one and a half _____ (year)old They lived here about one year and a half改错 one and a half hours 的同义词组 有one and half a month这种说法吗? one and a half years 谓语动词用单数还是复数?one year and a